checklist.md

• make sure you can't add movie with empty data (with spaces only);
• don't interact with DOM directly, use React as much as possible;
• make sure you described objects in propTypes;
• don't use isLoad, it can be isLoading or isLoaded;
• remove unused comments;
• don't generate key on render (here is why)
• follow these naming conventions for methods
• check out what can go wrong if you pass initialize your state with props (here, here and here)
• * don't use setState several times in one function call (method) (it's better for clarity of the code);
• * use classnames library for defining classes conditionally;
• * use try {..} catch for error handling

* - optional recommendation